Docker build fail

[CoeJoder]

Attempted to build from source using the instructions Quickstart: SeedSigner Reproducible Build! for Linux (Docker Desktop):

git clone --recursive https://github.com/SeedSigner/seedsigner-os.git
cd seedsigner-os
git submodule init && git submodule update
export DOCKER_DEFAULT_PLATFORM=linux/amd64
export BOARD_TYPE=pi0
SS_ARGS="--$BOARD_TYPE --app-branch=0.8.0" docker compose up --force-recreate --build

About 20 minutes in, the build fails with this terminal output:

...
build-images-1  | /usr/bin/g++ -O2 -I/output/host/include    -D_FILE_OFFSET_BITS=64    -DCMAKE_BOOTSTRAP    -DCMake_HAVE_CXX_MAKE_UNIQUE=1   -I/output/build/host-cmake-3.22.3/Bootstrap.cmk   -I/output/build/host-cmake-3.22.3/Source   -I/output/build/host-cmake-3.22.3/Source/LexerParser   -I/output/build/host-cmake-3.22.3/Utilities/std   -I/output/build/host-cmake-3.22.3/Utilities  -c /output/build/host-cmake-3.22.3/Source/LexerParser/cmExprParser.cxx -o cmExprParser.o
build-images-1  | g++: fatal error: Killed signal terminated program cc1plus
build-images-1  | compilation terminated.
build-images-1  | gmake[2]: *** [Makefile:182: cmGeneratorTarget.o] Error 1
build-images-1  | gmake[2]: *** Waiting for unfinished jobs....
build-images-1  | ---------------------------------------------
build-images-1  | Error when bootstrapping CMake:
build-images-1  | Problem while running gmake
build-images-1  | ---------------------------------------------
build-images-1  | Log of errors: /output/build/host-cmake-3.22.3/Bootstrap.cmk/cmake_bootstrap.log
build-images-1  | ---------------------------------------------
build-images-1  | make[1]: *** [package/pkg-generic.mk:283: /output/build/host-cmake-3.22.3/.stamp_configured] Error 9
build-images-1  | make: *** [Makefile:23: _all] Error 2

Attached:
/output/build/host-cmake-3.22.3/Bootstrap.cmk/cmake_bootstrap.log

System info:

Distributor ID: Linuxmint
Description:    Linux Mint 21.3
Release:        21.3
Codename:       virginia

I presume it's an issue on my end, just hoping for some advisement on troubleshooting this. I'm somewhat new to Docker.